Perhaps you should try some spelling variations:
chieu xanh » chieu sach, chieu sang, chieu tinh
thanh tung » thanh cong
tam thuong » tai thuong, pham thuong, va thuong
nang thanh » dang thanh, tang thanh, nhanh thanh
tam huong » tay huong, tam duong, nam phuong
nang than » sang than, nang phan, nang han
ho chieu » theo chieu, hoc thieu, doi chieu

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: ho chieu xanh - thanh tung ((tam thuong) OR (tam huong)) thong ((nang than) OR (nang thanh)) cau~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "ho chieu xanh - thanh tung ((tam thuong) OR (tam huong)) thong ((nang than) or (nang thanh)) cau~".
• Adding a wildcard symbol may retrieve word variants: ho chieu xanh - thanh tung ((tam thuong) OR (tam huong)) thong ((nang than) or (nang thanh)) cau*.